Machine for turning shoes and the like



Nov. 17,1925.

D. BAUM MACHINE FOR TURNING SHOES AND THE LIKE Filed April 5, 1924 4 Sheets-Sheet l I w r 1 l .U; 43 3 lllilllu In (/eu Zor.

Nov. 17, 1925. 1,562,282

D. BAUM MACHINE FOR TURNING SHQES AND THEJLIKE Filed April 5, 1924 4 Sheets-Sheet 2 Jar/anion D. BAUM MACHINE FOR TURNING SHOES AND THE LIKE Nov. 17, 1925- 4 Sheets Sheet, 5

Filed Afiril 5, 1924 Nov. 17, 1925- D. BAUM ucnm: FOR TURNING suoas AND THE LIKE Filed April 5,

4 Sheets-Sheet 4 Z 'I'lyZIFZi/JZ Patented Nov. 17, 1925.

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.T0 'aZZ whom it may eon-061%:

Be it known that I, D'Avm BAUM, acitiZen ofthe United States, and '21 resident o'fLiveimere Falls, in the 'ceunty of Androscoggin and State of Maine, have invented new and useful In'iprcve'ments in a. Machine for Turning Shoes and the like, of which the following is a specification. I I

My invention/relates t0 EL machine for autdmzttic'all'y turning 01 reversin ".1 "shoe, 01' other articles which may be simildfly treated, from wrong-side-oi'lt t'o right-sideout, 01 vice versa. In the manufacture Oi' shoes of certain kinds the uppers iii-e sewed to the solesi'viththe i vro'n'jgsides of both outwardly exposed, The pin-ts, ultimately, are required to be 1-e'\ e1s'ed,that is the already sewed sho'e must he turned right-si-de-dut.

A method quite--gcn'erall5 used to accomplish this result is first'to mm down a portion ofthe upper at the heel end, i'everse'the counter, which I lstt'er Operation partially turns the shank of the sole, continue the turning from the hall of the sole, Working toiizii'd thetipef 'the'shee. until-the complete. vamp has been tiuned inside-out, With a censequent exposurejo'f the reverse side of the, sole. As an hid t0 the op'er'z'itor a' horn shaped zirin is used afllgjainst Which to press the channel side of the sole to 'fesist the pulling over fol'ce'tifiplied to the vamp. It is very strenuous, slowope'r'tition, calling for great strength 'ai'idendurenee on "the part of the Workman.

'One 'ebject, of my invention is to supply a devicewhich will eliminate a greater part of this manual eliort in the turning of a shoe. "With the solelecked between tivofreeipi'ocating' plungers one above and (the below, WlnCll act in snych'i'cnl'sm "and fare in continuous contact with 'the sole during the entire turning period, the tendency to strain the upper is Q'i'en'tly reduc d if net whellfy eliminuted and the lessening of the seam is in a. great measure p'ieve'iited.

Another eiiy i "pci' t2i-nt feature is "thematter of time sai 'd ever-"the ol-dliiind method 6f turning. 'O'ne st-fiche of the lungers results in one shoe being turned \vl'i eie'aisniziny movements uel'e' n'e Hirbugh be'fe'i'e'this was accomplished in the o'l'dfivziy.

In lny'p'r esent invention 1 revers the sequence cf turning 'movements hyfhginii'ingdii the tip endbf tl'ie -"sili'oe in cent-fest line 1 0 m 1924. Serial No. 704,437.

with the'han'd method which 'stzut's with the sh ank.

. RV; H In the construction of this mach ne I lizive "incoipc-i ated features sdineivhat s 1mi-' tar to (mes found 'Ona 1')rev'ieusinvention, and on which holds United States 'jpzitent, dated July 20, 1920, and numbered 153485077 and "also-"en (to-pending appliobvious that -51 :power driven 'en'e could easily. be evolved. I also do not limit or confine myself 'to the exact details df const'fu'ct'i'on but consider myself at liberty to ad'op'tsuc'h changes "as I deem :piqper, provided alwa'ys that they come Within the scope Io r intentof the appended claims.

In the'drawings accompa-nyingjthis specification, r

Fig. 1=is 1 side elev ti-en of the machine.

Fig. 2 is an end elei tttidn of the same.

3 Fis '& "fragmentaiv el'evation, side View, and partly in sectiomwh'i'ch is ts-then on line 3i3, F-i-g. 2.

Fig. 4: is a. section taken on line 4- -4, Fig. 3. t

Fig. 5 is a. art sectional View taken on line 55, Fig. 3.

Fig. Sis a'seeticn on line 6 6, Fig.3. Fig. I7 "is a fragmentary end elevation, in artseetiontakn (in 7+7, Fig, 3.

Fig. "8 ifs-a i enttiy'eiid 'elei tmtidn, in part septien takenen1in e 8, 3.

*Fig. 9 is-weasel tien "(i-fthe upper end of the lecatin g pl?" (51'. V

Fig. *10 is'tt sectien of the smile, "when (an s Fig. 11 a. '10s gs. 12, as. 14 erie steps in the turning operation.

Fig. 16 is a side elevation, in part, of the machine, showing a shoe in position ready to be turned.

Fig. 17 is a sectional view through the 7 main bearings and actuating parts, taken on line 1717, Fig. 18.

Fig. 18 is a side view, partly in section, of parts shown in Fig. 17, taken on line 18-18, Fig. 17.

Figs. 19 and 20 show end View and plan, respectively, of an alternative design of shoe support, and

Figs. 21 and 22 are sections taken on lines I 2121 and 22-22, respectively in Fig. 20.

Like characters of reference refer to similar parts throughout the different views of the drawings.

Mounted on a pedestal 1 and secured thereto by bolts 2, 2, is a column 8. Interposed between the pedestal and column and using the same securing bolts, is a knee 4. In bearings 5, 5 is journalled an oscillating shaft 6, upon which is loosely mounted a segmental gear 7. In the bearing 8 on the column (3) and the bearing 9 on the knee (4) reciprocates a shaft or spindle 10. Out on this spindle is a rack 11, adapted to engage the segmental gear 7 The lever 12 is the means through which the gear and spindle'are actuated. Fixed to the spindle is an arm 13 with means 011 the inner side for attachinga chain or cable to operate the counter-weight 14. On the outer end of this arm is an adjustably secured plunger 15 with the lower end slightly knurled, as at 15*. On the forward side of the spindle (10) is adjustably secured a bar 16, with its lower end beveled, as at 16*. The purpose of this bar will be hereinafter explained. On the outer end of the knee 4 is formed a saddle 17 in which actuates the slide 18.

Referring to Fig. 3, the slide 18 carries on its inner end a roll 19 which is mounted in an adjustable block 20. Centrally of the slide is a projection 21 extending upwardly from'the slide a spaced distance. Attached to the sides of this project-ion are resilient bars 22, 22, which extending upwardly and made into the proper form constitute the support for the shoe being turned.

Directly beneath the projection 21, and in alignment therewith, is another projection 23. The two projections are bored to pro vide a bearing for the locating plunger 24. Toward the inner end of the slide is still another downwardly disposed projection 25, in which is rigidly secured the shaft 26. Mounted on this shaft (26) and sliding freely thereon is a latch carrier 27, and in an off-set portion 27 is an adjustable bushing 28. This bushing is located in alignment with the bearing extending through projections 21 and 23 and is adapted to slidably recg lve the lower end of t e locating plunger A threaded collar 29 adjusts the plunger 24 vertically. Interposed between the bushing 28 and the collar 29 is a helical spring 30 and on the extreme end of the plunger 24 is a nut 31.

Secured to the projection 23 is a stud 32 extending outwardly through the saddle and the spring tensioning bushing 33. A nut 34, outside of this bushing, acts as a stop to control and adjust the inward movement of the slide 18. A spring pocketed in a bored portion of the saddle and thrusting against the bushing 33 and the projection 23 forces the slide toward the spindle 10, the nut 34 impinging on the bushing 33 with the slide in its extreme inward position.

The latch carrier 27 has a rearward off-set portion 27 in which is an oblong hole 36. The spindle 10 extends downwardly through this hole and terminates in a reduced portion or a stud 37, the latter carrying a nut 38. Slidably mounted over this stud (37), and above the nut 38, is an angular connecting bar 39, pivotally connected to the foot pedal 40, the latter being fulcrumed at 41 on the pedestal 1 and carries an adjusting stop screw 42 on its forward end.

By observing Fig. 7 it will be seen that the projection 25 carries a latch 43, secured to the rod 44, and extending downwardly hooks on to the latch plate 45,the latter secured to the carrier 27. Extending rearwardly, this rod (44) has a bearing at 46 on the knee 4. liilounted fixedly on and near the end of the rod 44 is an arm 47 carrying a stop screw 48. A spring 49 normally holds the latch 43 in locked position.

Referring to Figs. 5 and 8, 50 is a latch having its upper portion 5O bent at an angle and made into the form of a ring which encircles the spindle 10. This latch (50) is pivotally hung on the off-set portion 27 of the latch carrier 27 and engages, at the proper time, the latch plate 51 sunk into a depression in the spindle 10. A screw 52 is for the purpose of disengaging the latch (50) from the latch plate on the upward movement of the carrier. A spring keeps the latch normally against the spindle 10). In Figs. 17 and 18 I have shown the parts having to do with the actuation of the turner. Outside of the right hand bearing 5 is a hand lever 12, preferably atljustalaly clamped to the shaft 6. Between the bear ings and on the shaft 6, I loosely mount the segmental gear 7. Adjacent to the gear and securely fixed on the shaft (6) is a flanged hub 55 having an arcuate hole through the flange thereof to receive the pin 56 which is fixed in the gear 7. Secured adjustably to the hub 55 is a segment of a disc 56 with the outer periphery having one edge beveled. In alignment with the face of this disc is a plunger 57, reciprocable a bearing 58 llu Cal

formed on the-innerjsideot the columns.

On the lower side' of the lever 12 lattach, over the rod 59, a counter-w'eight "60, the purpose of which will'shortly he described. As I'stated in my preamble, I use onthis shoe turner one element 'ofa inach'i'ne already patented by me. This element isthe Supporting member 61, shown in section in Figs. 12, 13, 14 and 15, and in t'ull i'n Figs; 1 a-nd'2. Briefly, it consists of resilient arms extending upwardly from rigidly *s'e'cu'red lowerextremities, and ter'niinat'es'a't the'to'p in reversed U shaped"cla'1n1')s, onedispose'd Within th'eother with their o 'v'e'n' side's facing and forming together an expansihle tubular structurethrough which the shoe is forced downwardly 21's it is turned. Ihave somewhat improved this element inone' pa rticular,i"iainelythe inatter of deereasing'the friction of the "sole as it isbent over the top of the support While being "forced do'w' n into the'latte'r. An "einbodin'ie'ntot' this idea is illustrated in Figs. 19 and 20, in which is shown small rolls 62, '62 rotatable over pins 62-3, "63,a roll loeing 'inountedoneiich "of the nien'ibers ofthe s'uppo'rt.

T he Construction of the upper end of the locatii'ig 'plunge1-"2tis'seenin Figs. 9 and 10. The plunger is -'b'ifur sate 1 at the extreme upper end end within the hiiii'ircatio'ns 24,

2 1: is a roll 6%, preferably bnt no't necessarily covered by some slightly resilient substance, such-as rubber-oifahric, to eliminate the possibility ofinarrin g the (it'ltel' ''ulfwe "or the sole and also to prevejntthe slipping of the sole on the 'roll'were it 'too'slnoothand frictionless. A recess 65 is c'ut'i-ntheside of the roll and a flat spring 66, which issecu'red in a slot '67 in a'pl'u g 68insei'ted'in allele in the plunger, enters and h'olds'the roll normally against a stop scre'wGS) o1'3er'atingin an arcuate cut-away portion 70011 the end of theroll. 'IFn locating a shoe-over this rollthe aetiono't the upper plun'gerfWhen it is being aligned with the shoe support, "tends to turn this roll until the opposite end of the slot '70 impinges 'on t'he'screw 69. This rolling actiongreatly facilitates the initial turn over of the tip of the 'sole.

In Figs. 11 and 11 'I'ill'ustrate"alternate designs for this .roll. In the former the side is cut down leaving a shoulder 71 against which the tip'ol? the sole 'n'i'ay seat. in the latter I flatten that portion, 72, Whioh'th'e rolling action, incident to the locating foperation, will eventuallybring to'the top central line,,-or directly in line'i vith the upper plunger,'a'nd the sole, seated on this 'fla'ttened surface Will assist in keeping the roll steady and tree from Wobhlin'g as it procecds (flounward through the 'supp'ort.

In describing the operation er this inachine it will first be "well to state tha t the latch carrier 27 placed in'a position "as seen in Figs. 1,2 and 3,'-the'-latch holding the carrier, temporarily in this loelted position. 7 The latch 50 'is {not as yet functieni 1 1 g,t'1nere1 lflngegaifist the sideot the spindle 10. The'position or the hand leyer 1 2 is as shown in full lines in Fig. 1. r N oiy'the first move is'to place a l-unturned shoe over the'flocatin-g plunger 24 (see Fig. 12) The 'foot pedal is next brought into actionand is forced downwardly until 'it comes x'vithin a spaced distance of'ebutting on the base "otthe ina'ohiiie. The upper plunger snow in a position as seen in Fi'g. l3,-the' two 'pluiigers being out of align merit, the 'be'v'eled'portion 162016 the bar 16 just contacting with the roll "19 "and the,

latch 50 not "yetjloc'ked on the spindle 10. The reminder of the foot pedal niovenient brings the upper plunger"downwardly"and at tliesa'i'ne time the bloc'k I6 fo'r'ces the slide outwardly bringing the tiyo 'plungrs into alignment and forcing the i locating plunger 24 a spaced distance i-nto'the shoesupport 61,a's seen in Fig. 14. util'izingflthe foot in starting the actuating"parts the hands ofth'e operator "arel ft free 'to pla'e and adjust the shoe over the locating plunger, 'lo'etwe'en 'Whioh 'and the i1p'p'er'e1- re ciprocati'n'g plunger the stile "of "the shoe Will "hest'rongly gripped befdfe it becomes necessary to disen gage the hands to operate the. ha'nd'lle'ver, l

At-th'is 'ti'ineth'e latch 50 has loelted 'iiito the spindle 10, the-spirit; 3O put tinde'r "a slight compression, iyh'i'c'h "inay, be varied to suit the particular yvor'k in hand, the hand lever 12 carried down i nto' position 12 (see Fig. 1) an'd'theseginental disc "56 moved into Close Contact with the'pl uiiger 57; butt'he la-t'h carijieris still in locked pOsitioi1-,pre\ eiiting, "temporarily, fi'ir 'ther movement downwardly oft-he plungers.

'Byj're terenc-e*tofFig. '18 i'tfwill he seen that the lever 12 is in liked *r-eraudnship to are both secured to the shaft 6,"a'iid" zilso it Will he observed that the pin 56, fixed in the gear 7, occupies a; "positionin the forwardend of the "arc'iiate'slot '55, \i li ich'l'ocates the "lever in a position indicated hy 12. Fig. '1 and Fig. 18', after the full stroke of the foot pedal is inade. .And in connection with the foregoing;- i will stated; the object or and reason for: pl hcin 'g "the counter- Weight on the hand lever is to norial ly' hold tlic 'foi'wai'tl end or this slot aiiist the pin 56, the slot (55) 1')ro"."id1n,- "the means tor a slight movement of the httnd arm a? and tripping the latch l3. By this time the upper or opposite end of the arouate slot will have contacted with the pin 56 which will again start movement of the gear 7, the spindle 10, the latch carrier 27 and of course the two plungers 15 and 24, betweenwhich thesole of the shoe is held by the strong, yielding grip of the plungers and is carried downward through the shoe support 61 until the shoe has been completely turned. After the proper length of stroke to properly turn the shoe is determined the stop collar 73 may be adjusted on the spindle 10, so that further action downwardly of the plungers will not be made.

After the completion of the foot pedal stroke and the hand lever is being operated, the stud 37 telescopes the connecting bar 239. The hand lever is used for the entire return stroke andthe plungers retain their grip on the sole during'the entire turning and can pelling operations. l Vhen the lever arrives )aclr at the 12 position the tripping and locking of the latches takes place as when on the downward stroke,only in the re verse order.

One point I wish to emphasize, in conclud ing, concerns the functioning of the plunger 15 in turning the tip of the sole over the end of the plunger 24. The vcontacting points are wholly on the sole and not the upper and it remains thus throughout the whole turning operation.

Having thus described my invention, what I claim is: i

1. In a machine for turning shoes and the like, the combination, with shoe supporting means and a reciprocable plunger normally out of alignment with said supporting means and in operation adapted to act on one side of the sole of a shoe, of a second plunger reciprocably mounted within said shoe supporting means and adapted to act on the opposite side of said sole of said shoe mounted thereon, said second plunger being capable of recession within said shoe support by the thrusting action of said reciprocable plunger first 'mentioned,-the two plungers co-acting to grip said sole while being forced into said supporting means, means for aligning the two said plungers, means for causing a rolling action to take place on the interposed solo by simultaneously moving one plunger perpendicularly and the other horizontally and means for actuating said first mentioned rcciprocahle plunger.

2. In a machine of the class described, a support for a shoe or other article to be turned, said support at its supporting end being eXpansible and of a form to permit entrance of a shoe being turned and to extend about the turned shoe, a retractile plunger operating within said expansible shoe support, and adapted to recede with the turning or the shoe, a reciprocabl'e plun ger, means to position said reciprocable plunger disalined with the first plunger and in position to engage the shoe at a side of the first plunger, means to shift said second mentioned plunger to a position in alinement with the first plunger, and means for actuating said second plunger in its'said alined position.

3. In a machine for turning shoes and the like, the combination, with a shoe turning support consisting of two flexible members fixed at their base and having their opposite ends bent into U shapes, with the flattened sides of one yieldingly disposed within the other and jointly having a tubular formation and areciprocable plunger adapted to enter and move a spaced distance within said support, of a second plunger, yieldingly co-acting with said reciprocable plunger, and operating within said shoe turning support and normally projecting a spaced distance from out of the latter, means for obtaining a preliminary bend to the tip of the sole of the shoe to be turned, into a substantially right-angular form preparatory to a complete turning of the shoe, said means consisting of parts necessary to obtain a combination of two right-angularly disposed movements of the two plungers,one acting horizontally and the other vertically, means for varying the resistance of said second mentioned plunger to the thrusting action of said reciprocable plunger, the sole of a shoe interposing, and means for actuating the said reciprocable plunger.

4. In a machine for turning shoes and the like, the combination, with expansilole tubular shoe supporting means, of a reciprocable plunger normally in disalignment with said supporting means, a retractible shoelocating plunger adapted to operate reciprocably within said supporting means, an oscillative roll mounted on the top of said locating plunger, means to restrict the oscillations of said roll, means for bringing said reciprocable plunger into accurate alignment with said locating plunger at a predetermined point in the stroke of the former and means for actuating said reciprocable plunger.

5. In a machine for turning shoes and the like, the combination, with shoe supporting means, of a reciprocable plunger located above and out of alignment with said supporting means, means for actuating said reciprocable plunger, means, co-acting with said last mentioned means, for bringing said supporting means into near alignment with said reciprocable plunger, a'locating plunger adapted to operate reciprocally within said supporting means, resilient means to resist the recession of said locating plunger into said supporting means and means whereby a predetermined resistance. between the reciprocable plunger and the locating plunger, while the sole of a shoe interposes, may be maintained during the entire turning operation.

(3. In a machine for turning shoes and the like, the combination, with shoe supporting means and a reciprocable plunger adapted to enter-said shoe supporting means, of a second plunger, co-acting at predetermined times, with said reciprocable plunger, and located within and extending a spaced dis tance above the said shoe supporting means, a latch carrier, means 011 said latch carrier for guiding and restricting the movement therethrough of said second mentioned plunger, means on said carrier whereby said second mentioned plunger may yieldin'gly resist the thrust of said reciprocable plunger, means for locking said carrier at predetermined times against the thrust of said reciprocable plunger and means for actuating the latter.

7. In a machine for turning shoes and the like, the combination, with a reciprocable plunger and shoe supporting means, of a locating plunger adapted to operate within and above said supporting means and parallel to the line of action of said reciprocable plunger, means for bringing said shoe supporting means out of alignment with said reciprocable plunger, means for bringing said shoe supporting means into alignment withv said reciprocable plunger, a latch carrier, means for locking said latch carrier against vertical movement on the said machine, means on said carrier whereby a yielding resistance to the movement of said locating plunger against the thrust of the said reciprocable plunger may be had, means whereby said yielding resistance may be adjusted to varying degrees of potency,- either increasing or decreasing, means for unlocking said latch carrier, 2. reciprocable shaft in fixed relation to said reciprocable plunger and means for actuating the said shaft.

8. In a machine of the class described, the combination, with shoe supporting means and a reciprocable plunger adapted to move into and out of said supporting means, of a slide, reciprocably mounted on a fixed portion of the said machine, said slide carrying the said shoe supporting means, a bearing on said slide, a second plunger adapted to reciprocate in said bearing and to extend into and above said shoe supporting means, means for moving the said shoe supporting means out of alignment with the said reciprocable plunger, a latch carrier, a latch mounted on said slide and adapted to hold said latch carrier in fixed relationship to the said slide at predetermined times, means on the said latch carrier 'ior giving the said second mentioned plunger a yielding resistance against the thrust of said reciprocable plunger, the two plungers acting, respectively, on opposite sides of an interposing sole, a shaft, means on said shaft for supporting the said reciprocable plunger, means on said shaft for bringing said shoe supporting means into alignment with said reciprocable plunger, a second latch, mounted on said latch carrier and adapted to act on the said shaft at predetermined times whereby the said latch carrier may be secured to the said shaft and reciprocate therewith, means forunlocking said second latch from said shaft, means for unlocking said latch carrier from said slide and means for actuating the said shaft.

9. In a machine for turning shoes, an expansible shoe turning support adapted to be inserted in the shoe to be turned and adapted to permit of the shoe being forced into said support for the said support to embrace the shoe, a 'retractile' plunger adapted to pass through said support to engage the shoe to be turned, a reciprocable plunger normally out of alinement with said support and said first mentioned plunger, means to give lateral movement to the second mentioned plunger while engaged with the shoe for displacing the latter to aline the two plungers and dispose a portion of the shoe sole therebetween, and means to reciprocate the second mentioned plunger when alined to cause recession of the first plunger and turning of the shoe into said support.

10. In a machine for turning shoes, a plunger adapted to enter the shoe to be turned and to recede with the turning of the shoe, a second plunger, means to position the second plunger disalined with the first plunger and engaging the shoe to be turned, and means to cause an alining of the plungers and a shifting of the shoe to dispose a portion of the sole between the plungers; together withmeans to reciprocate the second plunger for turning the shoe.

11. In a machine for turning shoes, a

plunger adapted to enter the shoe to be turnedand to recede with the turning of the shoe, a second plunger, means to position the-second plunger disalined with the first plunger and engaging the shoe to be turned, and means to cause an alining of the plungers and a shiftingof the shoe to dispose a portion of the sole between the plungers.

DAVID BAUM. 

